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<pre><span class="sourceLineNo">001</span>/* ===========================================================<a name="line.1"></a>
<span class="sourceLineNo">002</span> * JFreeChart : a free chart library for the Java(tm) platform<a name="line.2"></a>
<span class="sourceLineNo">003</span> * ===========================================================<a name="line.3"></a>
<span class="sourceLineNo">004</span> *<a name="line.4"></a>
<span class="sourceLineNo">005</span> * (C) Copyright 2000-2011, by Object Refinery Limited and Contributors.<a name="line.5"></a>
<span class="sourceLineNo">006</span> *<a name="line.6"></a>
<span class="sourceLineNo">007</span> * Project Info:  http://www.jfree.org/jfreechart/index.html<a name="line.7"></a>
<span class="sourceLineNo">008</span> *<a name="line.8"></a>
<span class="sourceLineNo">009</span> * This library is free software; you can redistribute it and/or modify it<a name="line.9"></a>
<span class="sourceLineNo">010</span> * under the terms of the GNU Lesser General Public License as published by<a name="line.10"></a>
<span class="sourceLineNo">011</span> * the Free Software Foundation; either version 2.1 of the License, or<a name="line.11"></a>
<span class="sourceLineNo">012</span> * (at your option) any later version.<a name="line.12"></a>
<span class="sourceLineNo">013</span> *<a name="line.13"></a>
<span class="sourceLineNo">014</span> * This library is distributed in the hope that it will be useful, but<a name="line.14"></a>
<span class="sourceLineNo">015</span> * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY<a name="line.15"></a>
<span class="sourceLineNo">016</span> * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public<a name="line.16"></a>
<span class="sourceLineNo">017</span> * License for more details.<a name="line.17"></a>
<span class="sourceLineNo">018</span> *<a name="line.18"></a>
<span class="sourceLineNo">019</span> * You should have received a copy of the GNU Lesser General Public<a name="line.19"></a>
<span class="sourceLineNo">020</span> * License along with this library; if not, write to the Free Software<a name="line.20"></a>
<span class="sourceLineNo">021</span> * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,<a name="line.21"></a>
<span class="sourceLineNo">022</span> * USA.<a name="line.22"></a>
<span class="sourceLineNo">023</span> *<a name="line.23"></a>
<span class="sourceLineNo">024</span> * [Oracle and Java are registered trademarks of Oracle and/or its affiliates. <a name="line.24"></a>
<span class="sourceLineNo">025</span> * Other names may be trademarks of their respective owners.]<a name="line.25"></a>
<span class="sourceLineNo">026</span> *<a name="line.26"></a>
<span class="sourceLineNo">027</span> * ---------------------------<a name="line.27"></a>
<span class="sourceLineNo">028</span> * StackedXYAreaRenderer2.java<a name="line.28"></a>
<span class="sourceLineNo">029</span> * ---------------------------<a name="line.29"></a>
<span class="sourceLineNo">030</span> * (C) Copyright 2004-2008, by Object Refinery Limited and Contributors.<a name="line.30"></a>
<span class="sourceLineNo">031</span> *<a name="line.31"></a>
<span class="sourceLineNo">032</span> * Original Author:  David Gilbert (for Object Refinery Limited), based on<a name="line.32"></a>
<span class="sourceLineNo">033</span> *                   the StackedXYAreaRenderer class by Richard Atkinson;<a name="line.33"></a>
<span class="sourceLineNo">034</span> * Contributor(s):   -;<a name="line.34"></a>
<span class="sourceLineNo">035</span> *<a name="line.35"></a>
<span class="sourceLineNo">036</span> * Changes:<a name="line.36"></a>
<span class="sourceLineNo">037</span> * --------<a name="line.37"></a>
<span class="sourceLineNo">038</span> * 30-Apr-2004 : Version 1 (DG);<a name="line.38"></a>
<span class="sourceLineNo">039</span> * 15-Jul-2004 : Switched getX() with getXValue() and getY() with<a name="line.39"></a>
<span class="sourceLineNo">040</span> *               getYValue() (DG);<a name="line.40"></a>
<span class="sourceLineNo">041</span> * 10-Sep-2004 : Removed getRangeType() method (DG);<a name="line.41"></a>
<span class="sourceLineNo">042</span> * 06-Jan-2004 : Renamed getRangeExtent() --&gt; findRangeBounds (DG);<a name="line.42"></a>
<span class="sourceLineNo">043</span> * 28-Mar-2005 : Use getXValue() and getYValue() from dataset (DG);<a name="line.43"></a>
<span class="sourceLineNo">044</span> * 03-Oct-2005 : Add entity generation to drawItem() method (DG);<a name="line.44"></a>
<span class="sourceLineNo">045</span> * ------------- JFREECHART 1.0.x ---------------------------------------------<a name="line.45"></a>
<span class="sourceLineNo">046</span> * 22-Aug-2006 : Handle null and empty datasets correctly in the<a name="line.46"></a>
<span class="sourceLineNo">047</span> *               findRangeBounds() method (DG);<a name="line.47"></a>
<span class="sourceLineNo">048</span> * 22-Sep-2006 : Added a flag to allow rounding of x-coordinates (after<a name="line.48"></a>
<span class="sourceLineNo">049</span> *               translation to Java2D space) in order to avoid the striping<a name="line.49"></a>
<span class="sourceLineNo">050</span> *               that can result from anti-aliasing (thanks to Doug<a name="line.50"></a>
<span class="sourceLineNo">051</span> *               Clayton) (DG);<a name="line.51"></a>
<span class="sourceLineNo">052</span> * 30-Nov-2006 : Added accessor methods for the roundXCoordinates flag (DG);<a name="line.52"></a>
<span class="sourceLineNo">053</span> * 02-Jun-2008 : Fixed bug with PlotOrientation.HORIZONTAL (DG);<a name="line.53"></a>
<span class="sourceLineNo">054</span> *<a name="line.54"></a>
<span class="sourceLineNo">055</span> */<a name="line.55"></a>
<span class="sourceLineNo">056</span><a name="line.56"></a>
<span class="sourceLineNo">057</span>package org.jfree.chart.renderer.xy;<a name="line.57"></a>
<span class="sourceLineNo">058</span><a name="line.58"></a>
<span class="sourceLineNo">059</span>import java.awt.Graphics2D;<a name="line.59"></a>
<span class="sourceLineNo">060</span>import java.awt.Paint;<a name="line.60"></a>
<span class="sourceLineNo">061</span>import java.awt.Shape;<a name="line.61"></a>
<span class="sourceLineNo">062</span>import java.awt.geom.GeneralPath;<a name="line.62"></a>
<span class="sourceLineNo">063</span>import java.awt.geom.Rectangle2D;<a name="line.63"></a>
<span class="sourceLineNo">064</span>import java.io.Serializable;<a name="line.64"></a>
<span class="sourceLineNo">065</span><a name="line.65"></a>
<span class="sourceLineNo">066</span>import org.jfree.chart.axis.ValueAxis;<a name="line.66"></a>
<span class="sourceLineNo">067</span>import org.jfree.chart.entity.EntityCollection;<a name="line.67"></a>
<span class="sourceLineNo">068</span>import org.jfree.chart.event.RendererChangeEvent;<a name="line.68"></a>
<span class="sourceLineNo">069</span>import org.jfree.chart.labels.XYToolTipGenerator;<a name="line.69"></a>
<span class="sourceLineNo">070</span>import org.jfree.chart.plot.CrosshairState;<a name="line.70"></a>
<span class="sourceLineNo">071</span>import org.jfree.chart.plot.PlotOrientation;<a name="line.71"></a>
<span class="sourceLineNo">072</span>import org.jfree.chart.plot.PlotRenderingInfo;<a name="line.72"></a>
<span class="sourceLineNo">073</span>import org.jfree.chart.plot.XYPlot;<a name="line.73"></a>
<span class="sourceLineNo">074</span>import org.jfree.chart.urls.XYURLGenerator;<a name="line.74"></a>
<span class="sourceLineNo">075</span>import org.jfree.data.Range;<a name="line.75"></a>
<span class="sourceLineNo">076</span>import org.jfree.data.xy.TableXYDataset;<a name="line.76"></a>
<span class="sourceLineNo">077</span>import org.jfree.data.xy.XYDataset;<a name="line.77"></a>
<span class="sourceLineNo">078</span>import org.jfree.ui.RectangleEdge;<a name="line.78"></a>
<span class="sourceLineNo">079</span>import org.jfree.util.PublicCloneable;<a name="line.79"></a>
<span class="sourceLineNo">080</span><a name="line.80"></a>
<span class="sourceLineNo">081</span>/**<a name="line.81"></a>
<span class="sourceLineNo">082</span> * A stacked area renderer for the {@link XYPlot} class.<a name="line.82"></a>
<span class="sourceLineNo">083</span> * The example shown here is generated by the<a name="line.83"></a>
<span class="sourceLineNo">084</span> * &lt;code&gt;StackedXYAreaChartDemo2.java&lt;/code&gt; program included in the<a name="line.84"></a>
<span class="sourceLineNo">085</span> * JFreeChart demo collection:<a name="line.85"></a>
<span class="sourceLineNo">086</span> * &lt;br&gt;&lt;br&gt;<a name="line.86"></a>
<span class="sourceLineNo">087</span> * &lt;img src="../../../../../images/StackedXYAreaRenderer2Sample.png"<a name="line.87"></a>
<span class="sourceLineNo">088</span> * alt="StackedXYAreaRenderer2Sample.png" /&gt;<a name="line.88"></a>
<span class="sourceLineNo">089</span> */<a name="line.89"></a>
<span class="sourceLineNo">090</span>public class StackedXYAreaRenderer2 extends XYAreaRenderer2<a name="line.90"></a>
<span class="sourceLineNo">091</span>        implements Cloneable, PublicCloneable, Serializable {<a name="line.91"></a>
<span class="sourceLineNo">092</span><a name="line.92"></a>
<span class="sourceLineNo">093</span>    /** For serialization. */<a name="line.93"></a>
<span class="sourceLineNo">094</span>    private static final long serialVersionUID = 7752676509764539182L;<a name="line.94"></a>
<span class="sourceLineNo">095</span><a name="line.95"></a>
<span class="sourceLineNo">096</span>    /**<a name="line.96"></a>
<span class="sourceLineNo">097</span>     * This flag controls whether or not the x-coordinates (in Java2D space)<a name="line.97"></a>
<span class="sourceLineNo">098</span>     * are rounded to integers.  When set to true, this can avoid the vertical<a name="line.98"></a>
<span class="sourceLineNo">099</span>     * striping that anti-aliasing can generate.  However, the rounding may not<a name="line.99"></a>
<span class="sourceLineNo">100</span>     * be appropriate for output in high resolution formats (for example,<a name="line.100"></a>
<span class="sourceLineNo">101</span>     * vector graphics formats such as SVG and PDF).<a name="line.101"></a>
<span class="sourceLineNo">102</span>     *<a name="line.102"></a>
<span class="sourceLineNo">103</span>     * @since 1.0.3<a name="line.103"></a>
<span class="sourceLineNo">104</span>     */<a name="line.104"></a>
<span class="sourceLineNo">105</span>    private boolean roundXCoordinates;<a name="line.105"></a>
<span class="sourceLineNo">106</span><a name="line.106"></a>
<span class="sourceLineNo">107</span>    /**<a name="line.107"></a>
<span class="sourceLineNo">108</span>     * Creates a new renderer.<a name="line.108"></a>
<span class="sourceLineNo">109</span>     */<a name="line.109"></a>
<span class="sourceLineNo">110</span>    public StackedXYAreaRenderer2() {<a name="line.110"></a>
<span class="sourceLineNo">111</span>        this(null, null);<a name="line.111"></a>
<span class="sourceLineNo">112</span>    }<a name="line.112"></a>
<span class="sourceLineNo">113</span><a name="line.113"></a>
<span class="sourceLineNo">114</span>    /**<a name="line.114"></a>
<span class="sourceLineNo">115</span>     * Constructs a new renderer.<a name="line.115"></a>
<span class="sourceLineNo">116</span>     *<a name="line.116"></a>
<span class="sourceLineNo">117</span>     * @param labelGenerator  the tool tip generator to use.  &lt;code&gt;null&lt;/code&gt;<a name="line.117"></a>
<span class="sourceLineNo">118</span>     *                        is none.<a name="line.118"></a>
<span class="sourceLineNo">119</span>     * @param urlGenerator  the URL generator (&lt;code&gt;null&lt;/code&gt; permitted).<a name="line.119"></a>
<span class="sourceLineNo">120</span>     */<a name="line.120"></a>
<span class="sourceLineNo">121</span>    public StackedXYAreaRenderer2(XYToolTipGenerator labelGenerator,<a name="line.121"></a>
<span class="sourceLineNo">122</span>                                  XYURLGenerator urlGenerator) {<a name="line.122"></a>
<span class="sourceLineNo">123</span>        super(labelGenerator, urlGenerator);<a name="line.123"></a>
<span class="sourceLineNo">124</span>        this.roundXCoordinates = true;<a name="line.124"></a>
<span class="sourceLineNo">125</span>    }<a name="line.125"></a>
<span class="sourceLineNo">126</span><a name="line.126"></a>
<span class="sourceLineNo">127</span>    /**<a name="line.127"></a>
<span class="sourceLineNo">128</span>     * Returns the flag that controls whether or not the x-coordinates (in<a name="line.128"></a>
<span class="sourceLineNo">129</span>     * Java2D space) are rounded to integer values.<a name="line.129"></a>
<span class="sourceLineNo">130</span>     *<a name="line.130"></a>
<span class="sourceLineNo">131</span>     * @return The flag.<a name="line.131"></a>
<span class="sourceLineNo">132</span>     *<a name="line.132"></a>
<span class="sourceLineNo">133</span>     * @since 1.0.4<a name="line.133"></a>
<span class="sourceLineNo">134</span>     *<a name="line.134"></a>
<span class="sourceLineNo">135</span>     * @see #setRoundXCoordinates(boolean)<a name="line.135"></a>
<span class="sourceLineNo">136</span>     */<a name="line.136"></a>
<span class="sourceLineNo">137</span>    public boolean getRoundXCoordinates() {<a name="line.137"></a>
<span class="sourceLineNo">138</span>        return this.roundXCoordinates;<a name="line.138"></a>
<span class="sourceLineNo">139</span>    }<a name="line.139"></a>
<span class="sourceLineNo">140</span><a name="line.140"></a>
<span class="sourceLineNo">141</span>    /**<a name="line.141"></a>
<span class="sourceLineNo">142</span>     * Sets the flag that controls whether or not the x-coordinates (in<a name="line.142"></a>
<span class="sourceLineNo">143</span>     * Java2D space) are rounded to integer values, and sends a<a name="line.143"></a>
<span class="sourceLineNo">144</span>     * {@link RendererChangeEvent} to all registered listeners.<a name="line.144"></a>
<span class="sourceLineNo">145</span>     *<a name="line.145"></a>
<span class="sourceLineNo">146</span>     * @param round  the new flag value.<a name="line.146"></a>
<span class="sourceLineNo">147</span>     *<a name="line.147"></a>
<span class="sourceLineNo">148</span>     * @since 1.0.4<a name="line.148"></a>
<span class="sourceLineNo">149</span>     *<a name="line.149"></a>
<span class="sourceLineNo">150</span>     * @see #getRoundXCoordinates()<a name="line.150"></a>
<span class="sourceLineNo">151</span>     */<a name="line.151"></a>
<span class="sourceLineNo">152</span>    public void setRoundXCoordinates(boolean round) {<a name="line.152"></a>
<span class="sourceLineNo">153</span>        this.roundXCoordinates = round;<a name="line.153"></a>
<span class="sourceLineNo">154</span>        fireChangeEvent();<a name="line.154"></a>
<span class="sourceLineNo">155</span>    }<a name="line.155"></a>
<span class="sourceLineNo">156</span><a name="line.156"></a>
<span class="sourceLineNo">157</span>    /**<a name="line.157"></a>
<span class="sourceLineNo">158</span>     * Returns the range of values the renderer requires to display all the<a name="line.158"></a>
<span class="sourceLineNo">159</span>     * items from the specified dataset.<a name="line.159"></a>
<span class="sourceLineNo">160</span>     *<a name="line.160"></a>
<span class="sourceLineNo">161</span>     * @param dataset  the dataset (&lt;code&gt;null&lt;/code&gt; permitted).<a name="line.161"></a>
<span class="sourceLineNo">162</span>     *<a name="line.162"></a>
<span class="sourceLineNo">163</span>     * @return The range (or &lt;code&gt;null&lt;/code&gt; if the dataset is<a name="line.163"></a>
<span class="sourceLineNo">164</span>     *         &lt;code&gt;null&lt;/code&gt; or empty).<a name="line.164"></a>
<span class="sourceLineNo">165</span>     */<a name="line.165"></a>
<span class="sourceLineNo">166</span>    public Range findRangeBounds(XYDataset dataset) {<a name="line.166"></a>
<span class="sourceLineNo">167</span>        if (dataset == null) {<a name="line.167"></a>
<span class="sourceLineNo">168</span>            return null;<a name="line.168"></a>
<span class="sourceLineNo">169</span>        }<a name="line.169"></a>
<span class="sourceLineNo">170</span>        double min = Double.POSITIVE_INFINITY;<a name="line.170"></a>
<span class="sourceLineNo">171</span>        double max = Double.NEGATIVE_INFINITY;<a name="line.171"></a>
<span class="sourceLineNo">172</span>        TableXYDataset d = (TableXYDataset) dataset;<a name="line.172"></a>
<span class="sourceLineNo">173</span>        int itemCount = d.getItemCount();<a name="line.173"></a>
<span class="sourceLineNo">174</span>        for (int i = 0; i &lt; itemCount; i++) {<a name="line.174"></a>
<span class="sourceLineNo">175</span>            double[] stackValues = getStackValues((TableXYDataset) dataset,<a name="line.175"></a>
<span class="sourceLineNo">176</span>                    d.getSeriesCount(), i);<a name="line.176"></a>
<span class="sourceLineNo">177</span>            min = Math.min(min, stackValues[0]);<a name="line.177"></a>
<span class="sourceLineNo">178</span>            max = Math.max(max, stackValues[1]);<a name="line.178"></a>
<span class="sourceLineNo">179</span>        }<a name="line.179"></a>
<span class="sourceLineNo">180</span>        if (min == Double.POSITIVE_INFINITY) {<a name="line.180"></a>
<span class="sourceLineNo">181</span>            return null;<a name="line.181"></a>
<span class="sourceLineNo">182</span>        }<a name="line.182"></a>
<span class="sourceLineNo">183</span>        return new Range(min, max);<a name="line.183"></a>
<span class="sourceLineNo">184</span>    }<a name="line.184"></a>
<span class="sourceLineNo">185</span><a name="line.185"></a>
<span class="sourceLineNo">186</span>    /**<a name="line.186"></a>
<span class="sourceLineNo">187</span>     * Returns the number of passes required by the renderer.<a name="line.187"></a>
<span class="sourceLineNo">188</span>     *<a name="line.188"></a>
<span class="sourceLineNo">189</span>     * @return 1.<a name="line.189"></a>
<span class="sourceLineNo">190</span>     */<a name="line.190"></a>
<span class="sourceLineNo">191</span>    public int getPassCount() {<a name="line.191"></a>
<span class="sourceLineNo">192</span>        return 1;<a name="line.192"></a>
<span class="sourceLineNo">193</span>    }<a name="line.193"></a>
<span class="sourceLineNo">194</span><a name="line.194"></a>
<span class="sourceLineNo">195</span>    /**<a name="line.195"></a>
<span class="sourceLineNo">196</span>     * Draws the visual representation of a single data item.<a name="line.196"></a>
<span class="sourceLineNo">197</span>     *<a name="line.197"></a>
<span class="sourceLineNo">198</span>     * @param g2  the graphics device.<a name="line.198"></a>
<span class="sourceLineNo">199</span>     * @param state  the renderer state.<a name="line.199"></a>
<span class="sourceLineNo">200</span>     * @param dataArea  the area within which the data is being drawn.<a name="line.200"></a>
<span class="sourceLineNo">201</span>     * @param info  collects information about the drawing.<a name="line.201"></a>
<span class="sourceLineNo">202</span>     * @param plot  the plot (can be used to obtain standard color information<a name="line.202"></a>
<span class="sourceLineNo">203</span>     *              etc).<a name="line.203"></a>
<span class="sourceLineNo">204</span>     * @param domainAxis  the domain axis.<a name="line.204"></a>
<span class="sourceLineNo">205</span>     * @param rangeAxis  the range axis.<a name="line.205"></a>
<span class="sourceLineNo">206</span>     * @param dataset  the dataset.<a name="line.206"></a>
<span class="sourceLineNo">207</span>     * @param series  the series index (zero-based).<a name="line.207"></a>
<span class="sourceLineNo">208</span>     * @param item  the item index (zero-based).<a name="line.208"></a>
<span class="sourceLineNo">209</span>     * @param crosshairState  information about crosshairs on a plot.<a name="line.209"></a>
<span class="sourceLineNo">210</span>     * @param pass  the pass index.<a name="line.210"></a>
<span class="sourceLineNo">211</span>     */<a name="line.211"></a>
<span class="sourceLineNo">212</span>    public void drawItem(Graphics2D g2,<a name="line.212"></a>
<span class="sourceLineNo">213</span>                         XYItemRendererState state,<a name="line.213"></a>
<span class="sourceLineNo">214</span>                         Rectangle2D dataArea,<a name="line.214"></a>
<span class="sourceLineNo">215</span>                         PlotRenderingInfo info,<a name="line.215"></a>
<span class="sourceLineNo">216</span>                         XYPlot plot,<a name="line.216"></a>
<span class="sourceLineNo">217</span>                         ValueAxis domainAxis,<a name="line.217"></a>
<span class="sourceLineNo">218</span>                         ValueAxis rangeAxis,<a name="line.218"></a>
<span class="sourceLineNo">219</span>                         XYDataset dataset,<a name="line.219"></a>
<span class="sourceLineNo">220</span>                         int series,<a name="line.220"></a>
<span class="sourceLineNo">221</span>                         int item,<a name="line.221"></a>
<span class="sourceLineNo">222</span>                         CrosshairState crosshairState,<a name="line.222"></a>
<span class="sourceLineNo">223</span>                         int pass) {<a name="line.223"></a>
<span class="sourceLineNo">224</span><a name="line.224"></a>
<span class="sourceLineNo">225</span>        // setup for collecting optional entity info...<a name="line.225"></a>
<span class="sourceLineNo">226</span>        Shape entityArea = null;<a name="line.226"></a>
<span class="sourceLineNo">227</span>        EntityCollection entities = null;<a name="line.227"></a>
<span class="sourceLineNo">228</span>        if (info != null) {<a name="line.228"></a>
<span class="sourceLineNo">229</span>            entities = info.getOwner().getEntityCollection();<a name="line.229"></a>
<span class="sourceLineNo">230</span>        }<a name="line.230"></a>
<span class="sourceLineNo">231</span><a name="line.231"></a>
<span class="sourceLineNo">232</span>        TableXYDataset tdataset = (TableXYDataset) dataset;<a name="line.232"></a>
<span class="sourceLineNo">233</span>        PlotOrientation orientation = plot.getOrientation();<a name="line.233"></a>
<span class="sourceLineNo">234</span><a name="line.234"></a>
<span class="sourceLineNo">235</span>        // get the data point...<a name="line.235"></a>
<span class="sourceLineNo">236</span>        double x1 = dataset.getXValue(series, item);<a name="line.236"></a>
<span class="sourceLineNo">237</span>        double y1 = dataset.getYValue(series, item);<a name="line.237"></a>
<span class="sourceLineNo">238</span>        if (Double.isNaN(y1)) {<a name="line.238"></a>
<span class="sourceLineNo">239</span>            y1 = 0.0;<a name="line.239"></a>
<span class="sourceLineNo">240</span>        }<a name="line.240"></a>
<span class="sourceLineNo">241</span>        double[] stack1 = getStackValues(tdataset, series, item);<a name="line.241"></a>
<span class="sourceLineNo">242</span><a name="line.242"></a>
<span class="sourceLineNo">243</span>        // get the previous point and the next point so we can calculate a<a name="line.243"></a>
<span class="sourceLineNo">244</span>        // "hot spot" for the area (used by the chart entity)...<a name="line.244"></a>
<span class="sourceLineNo">245</span>        double x0 = dataset.getXValue(series, Math.max(item - 1, 0));<a name="line.245"></a>
<span class="sourceLineNo">246</span>        double y0 = dataset.getYValue(series, Math.max(item - 1, 0));<a name="line.246"></a>
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<span class="sourceLineNo">252</span><a name="line.252"></a>
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<span class="sourceLineNo">255</span>                itemCount - 1));<a name="line.255"></a>
<span class="sourceLineNo">256</span>        double y2 = dataset.getYValue(series, Math.min(item + 1,<a name="line.256"></a>
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<span class="sourceLineNo">264</span>        double xleft = (x0 + x1) / 2.0;<a name="line.264"></a>
<span class="sourceLineNo">265</span>        double xright = (x1 + x2) / 2.0;<a name="line.265"></a>
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<span class="sourceLineNo">267</span>        double[] stackRight = averageStackValues(stack1, stack2);<a name="line.267"></a>
<span class="sourceLineNo">268</span>        double[] adjStackLeft = adjustedStackValues(stack0, stack1);<a name="line.268"></a>
<span class="sourceLineNo">269</span>        double[] adjStackRight = adjustedStackValues(stack1, stack2);<a name="line.269"></a>
<span class="sourceLineNo">270</span><a name="line.270"></a>
<span class="sourceLineNo">271</span>        RectangleEdge edge0 = plot.getDomainAxisEdge();<a name="line.271"></a>
<span class="sourceLineNo">272</span><a name="line.272"></a>
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<span class="sourceLineNo">281</span>            transXLeft = Math.round(transXLeft);<a name="line.281"></a>
<span class="sourceLineNo">282</span>            transXRight = Math.round(transXRight);<a name="line.282"></a>
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<span class="sourceLineNo">284</span>        float transY1;<a name="line.284"></a>
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<span class="sourceLineNo">287</span><a name="line.287"></a>
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<span class="sourceLineNo">289</span>        GeneralPath right = new GeneralPath();<a name="line.289"></a>
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<span class="sourceLineNo">301</span>                float transYLeft<a name="line.301"></a>
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<span class="sourceLineNo">304</span>                    left.moveTo(transX1, transY1);<a name="line.304"></a>
<span class="sourceLineNo">305</span>                    left.lineTo(transX1, transStack1);<a name="line.305"></a>
<span class="sourceLineNo">306</span>                    left.lineTo(transXLeft, transStackLeft);<a name="line.306"></a>
<span class="sourceLineNo">307</span>                    left.lineTo(transXLeft, transYLeft);<a name="line.307"></a>
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<span class="sourceLineNo">310</span>                    left.moveTo(transY1, transX1);<a name="line.310"></a>
<span class="sourceLineNo">311</span>                    left.lineTo(transStack1, transX1);<a name="line.311"></a>
<span class="sourceLineNo">312</span>                    left.lineTo(transStackLeft, transXLeft);<a name="line.312"></a>
<span class="sourceLineNo">313</span>                    left.lineTo(transYLeft, transXLeft);<a name="line.313"></a>
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<span class="sourceLineNo">315</span>                left.closePath();<a name="line.315"></a>
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<span class="sourceLineNo">317</span>            else {<a name="line.317"></a>
<span class="sourceLineNo">318</span>                if (orientation == PlotOrientation.VERTICAL) {<a name="line.318"></a>
<span class="sourceLineNo">319</span>                    left.moveTo(transX1, transStack1);<a name="line.319"></a>
<span class="sourceLineNo">320</span>                    left.lineTo(transX1, transY1);<a name="line.320"></a>
<span class="sourceLineNo">321</span>                    left.lineTo(transXLeft, transStackLeft);<a name="line.321"></a>
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<span class="sourceLineNo">324</span>                    left.moveTo(transStack1, transX1);<a name="line.324"></a>
<span class="sourceLineNo">325</span>                    left.lineTo(transY1, transX1);<a name="line.325"></a>
<span class="sourceLineNo">326</span>                    left.lineTo(transStackLeft, transXLeft);<a name="line.326"></a>
<span class="sourceLineNo">327</span>                }<a name="line.327"></a>
<span class="sourceLineNo">328</span>                left.closePath();<a name="line.328"></a>
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<span class="sourceLineNo">330</span><a name="line.330"></a>
<span class="sourceLineNo">331</span>            float transStackRight = (float) rangeAxis.valueToJava2D(<a name="line.331"></a>
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<span class="sourceLineNo">333</span>            // RIGHT POLYGON<a name="line.333"></a>
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<span class="sourceLineNo">335</span>                double yright = (y1 + y2) / 2.0 + stackRight[1];<a name="line.335"></a>
<span class="sourceLineNo">336</span>                float transYRight<a name="line.336"></a>
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<span class="sourceLineNo">339</span>                    right.moveTo(transX1, transStack1);<a name="line.339"></a>
<span class="sourceLineNo">340</span>                    right.lineTo(transX1, transY1);<a name="line.340"></a>
<span class="sourceLineNo">341</span>                    right.lineTo(transXRight, transYRight);<a name="line.341"></a>
<span class="sourceLineNo">342</span>                    right.lineTo(transXRight, transStackRight);<a name="line.342"></a>
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<span class="sourceLineNo">345</span>                    right.moveTo(transStack1, transX1);<a name="line.345"></a>
<span class="sourceLineNo">346</span>                    right.lineTo(transY1, transX1);<a name="line.346"></a>
<span class="sourceLineNo">347</span>                    right.lineTo(transYRight, transXRight);<a name="line.347"></a>
<span class="sourceLineNo">348</span>                    right.lineTo(transStackRight, transXRight);<a name="line.348"></a>
<span class="sourceLineNo">349</span>                }<a name="line.349"></a>
<span class="sourceLineNo">350</span>                right.closePath();<a name="line.350"></a>
<span class="sourceLineNo">351</span>            }<a name="line.351"></a>
<span class="sourceLineNo">352</span>            else {<a name="line.352"></a>
<span class="sourceLineNo">353</span>                if (orientation == PlotOrientation.VERTICAL) {<a name="line.353"></a>
<span class="sourceLineNo">354</span>                    right.moveTo(transX1, transStack1);<a name="line.354"></a>
<span class="sourceLineNo">355</span>                    right.lineTo(transX1, transY1);<a name="line.355"></a>
<span class="sourceLineNo">356</span>                    right.lineTo(transXRight, transStackRight);<a name="line.356"></a>
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<span class="sourceLineNo">358</span>                else {<a name="line.358"></a>
<span class="sourceLineNo">359</span>                    right.moveTo(transStack1, transX1);<a name="line.359"></a>
<span class="sourceLineNo">360</span>                    right.lineTo(transY1, transX1);<a name="line.360"></a>
<span class="sourceLineNo">361</span>                    right.lineTo(transStackRight, transXRight);<a name="line.361"></a>
<span class="sourceLineNo">362</span>                }<a name="line.362"></a>
<span class="sourceLineNo">363</span>                right.closePath();<a name="line.363"></a>
<span class="sourceLineNo">364</span>            }<a name="line.364"></a>
<span class="sourceLineNo">365</span>        }<a name="line.365"></a>
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<span class="sourceLineNo">367</span>            transY1 = (float) rangeAxis.valueToJava2D(y1 + stack1[0], dataArea,<a name="line.367"></a>
<span class="sourceLineNo">368</span>                    edge1);<a name="line.368"></a>
<span class="sourceLineNo">369</span>            float transStack1 = (float) rangeAxis.valueToJava2D(stack1[0],<a name="line.369"></a>
<span class="sourceLineNo">370</span>                    dataArea, edge1);<a name="line.370"></a>
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<span class="sourceLineNo">373</span><a name="line.373"></a>
<span class="sourceLineNo">374</span>            // LEFT POLYGON<a name="line.374"></a>
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<span class="sourceLineNo">376</span>                if (orientation == PlotOrientation.VERTICAL) {<a name="line.376"></a>
<span class="sourceLineNo">377</span>                    left.moveTo(transX1, transStack1);<a name="line.377"></a>
<span class="sourceLineNo">378</span>                    left.lineTo(transX1, transY1);<a name="line.378"></a>
<span class="sourceLineNo">379</span>                    left.lineTo(transXLeft, transStackLeft);<a name="line.379"></a>
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<span class="sourceLineNo">382</span>                    left.moveTo(transStack1, transX1);<a name="line.382"></a>
<span class="sourceLineNo">383</span>                    left.lineTo(transY1, transX1);<a name="line.383"></a>
<span class="sourceLineNo">384</span>                    left.lineTo(transStackLeft, transXLeft);<a name="line.384"></a>
<span class="sourceLineNo">385</span>                }<a name="line.385"></a>
<span class="sourceLineNo">386</span>                left.clone();<a name="line.386"></a>
<span class="sourceLineNo">387</span>            }<a name="line.387"></a>
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<span class="sourceLineNo">389</span>                double yleft = (y0 + y1) / 2.0 + stackLeft[0];<a name="line.389"></a>
<span class="sourceLineNo">390</span>                float transYLeft = (float) rangeAxis.valueToJava2D(yleft,<a name="line.390"></a>
<span class="sourceLineNo">391</span>                        dataArea, edge1);<a name="line.391"></a>
<span class="sourceLineNo">392</span>                if (orientation == PlotOrientation.VERTICAL) {<a name="line.392"></a>
<span class="sourceLineNo">393</span>                    left.moveTo(transX1, transY1);<a name="line.393"></a>
<span class="sourceLineNo">394</span>                    left.lineTo(transX1, transStack1);<a name="line.394"></a>
<span class="sourceLineNo">395</span>                    left.lineTo(transXLeft, transStackLeft);<a name="line.395"></a>
<span class="sourceLineNo">396</span>                    left.lineTo(transXLeft, transYLeft);<a name="line.396"></a>
<span class="sourceLineNo">397</span>                }<a name="line.397"></a>
<span class="sourceLineNo">398</span>                else {<a name="line.398"></a>
<span class="sourceLineNo">399</span>                    left.moveTo(transY1, transX1);<a name="line.399"></a>
<span class="sourceLineNo">400</span>                    left.lineTo(transStack1, transX1);<a name="line.400"></a>
<span class="sourceLineNo">401</span>                    left.lineTo(transStackLeft, transXLeft);<a name="line.401"></a>
<span class="sourceLineNo">402</span>                    left.lineTo(transYLeft, transXLeft);<a name="line.402"></a>
<span class="sourceLineNo">403</span>                }<a name="line.403"></a>
<span class="sourceLineNo">404</span>                left.closePath();<a name="line.404"></a>
<span class="sourceLineNo">405</span>            }<a name="line.405"></a>
<span class="sourceLineNo">406</span>            float transStackRight = (float) rangeAxis.valueToJava2D(<a name="line.406"></a>
<span class="sourceLineNo">407</span>                    adjStackRight[0], dataArea, edge1);<a name="line.407"></a>
<span class="sourceLineNo">408</span><a name="line.408"></a>
<span class="sourceLineNo">409</span>            // RIGHT POLYGON<a name="line.409"></a>
<span class="sourceLineNo">410</span>            if (y2 &gt;= 0.0) {<a name="line.410"></a>
<span class="sourceLineNo">411</span>                if (orientation == PlotOrientation.VERTICAL) {<a name="line.411"></a>
<span class="sourceLineNo">412</span>                    right.moveTo(transX1, transStack1);<a name="line.412"></a>
<span class="sourceLineNo">413</span>                    right.lineTo(transX1, transY1);<a name="line.413"></a>
<span class="sourceLineNo">414</span>                    right.lineTo(transXRight, transStackRight);<a name="line.414"></a>
<span class="sourceLineNo">415</span>                }<a name="line.415"></a>
<span class="sourceLineNo">416</span>                else {<a name="line.416"></a>
<span class="sourceLineNo">417</span>                    right.moveTo(transStack1, transX1);<a name="line.417"></a>
<span class="sourceLineNo">418</span>                    right.lineTo(transY1, transX1);<a name="line.418"></a>
<span class="sourceLineNo">419</span>                    right.lineTo(transStackRight, transXRight);<a name="line.419"></a>
<span class="sourceLineNo">420</span>                }<a name="line.420"></a>
<span class="sourceLineNo">421</span>                right.closePath();<a name="line.421"></a>
<span class="sourceLineNo">422</span>            }<a name="line.422"></a>
<span class="sourceLineNo">423</span>            else {<a name="line.423"></a>
<span class="sourceLineNo">424</span>                double yright = (y1 + y2) / 2.0 + stackRight[0];<a name="line.424"></a>
<span class="sourceLineNo">425</span>                float transYRight = (float) rangeAxis.valueToJava2D(yright,<a name="line.425"></a>
<span class="sourceLineNo">426</span>                        dataArea, edge1);<a name="line.426"></a>
<span class="sourceLineNo">427</span>                if (orientation == PlotOrientation.VERTICAL) {<a name="line.427"></a>
<span class="sourceLineNo">428</span>                    right.moveTo(transX1, transStack1);<a name="line.428"></a>
<span class="sourceLineNo">429</span>                    right.lineTo(transX1, transY1);<a name="line.429"></a>
<span class="sourceLineNo">430</span>                    right.lineTo(transXRight, transYRight);<a name="line.430"></a>
<span class="sourceLineNo">431</span>                    right.lineTo(transXRight, transStackRight);<a name="line.431"></a>
<span class="sourceLineNo">432</span>                }<a name="line.432"></a>
<span class="sourceLineNo">433</span>                else {<a name="line.433"></a>
<span class="sourceLineNo">434</span>                    right.moveTo(transStack1, transX1);<a name="line.434"></a>
<span class="sourceLineNo">435</span>                    right.lineTo(transY1, transX1);<a name="line.435"></a>
<span class="sourceLineNo">436</span>                    right.lineTo(transYRight, transXRight);<a name="line.436"></a>
<span class="sourceLineNo">437</span>                    right.lineTo(transStackRight, transXRight);<a name="line.437"></a>
<span class="sourceLineNo">438</span>                }<a name="line.438"></a>
<span class="sourceLineNo">439</span>                right.closePath();<a name="line.439"></a>
<span class="sourceLineNo">440</span>            }<a name="line.440"></a>
<span class="sourceLineNo">441</span>        }<a name="line.441"></a>
<span class="sourceLineNo">442</span><a name="line.442"></a>
<span class="sourceLineNo">443</span>        //  Get series Paint and Stroke<a name="line.443"></a>
<span class="sourceLineNo">444</span>        Paint itemPaint = getItemPaint(series, item);<a name="line.444"></a>
<span class="sourceLineNo">445</span>        if (pass == 0) {<a name="line.445"></a>
<span class="sourceLineNo">446</span>            g2.setPaint(itemPaint);<a name="line.446"></a>
<span class="sourceLineNo">447</span>            g2.fill(left);<a name="line.447"></a>
<span class="sourceLineNo">448</span>            g2.fill(right);<a name="line.448"></a>
<span class="sourceLineNo">449</span>        }<a name="line.449"></a>
<span class="sourceLineNo">450</span><a name="line.450"></a>
<span class="sourceLineNo">451</span>        // add an entity for the item...<a name="line.451"></a>
<span class="sourceLineNo">452</span>        if (entities != null) {<a name="line.452"></a>
<span class="sourceLineNo">453</span>            GeneralPath gp = new GeneralPath(left);<a name="line.453"></a>
<span class="sourceLineNo">454</span>            gp.append(right, false);<a name="line.454"></a>
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<span class="sourceLineNo">456</span>            addEntity(entities, entityArea, dataset, series, item,<a name="line.456"></a>
<span class="sourceLineNo">457</span>                    transX1, transY1);<a name="line.457"></a>
<span class="sourceLineNo">458</span>        }<a name="line.458"></a>
<span class="sourceLineNo">459</span><a name="line.459"></a>
<span class="sourceLineNo">460</span>    }<a name="line.460"></a>
<span class="sourceLineNo">461</span><a name="line.461"></a>
<span class="sourceLineNo">462</span>    /**<a name="line.462"></a>
<span class="sourceLineNo">463</span>     * Calculates the stacked values (one positive and one negative) of all<a name="line.463"></a>
<span class="sourceLineNo">464</span>     * series up to, but not including, &lt;code&gt;series&lt;/code&gt; for the specified<a name="line.464"></a>
<span class="sourceLineNo">465</span>     * item. It returns [0.0, 0.0] if &lt;code&gt;series&lt;/code&gt; is the first series.<a name="line.465"></a>
<span class="sourceLineNo">466</span>     *<a name="line.466"></a>
<span class="sourceLineNo">467</span>     * @param dataset  the dataset (&lt;code&gt;null&lt;/code&gt; not permitted).<a name="line.467"></a>
<span class="sourceLineNo">468</span>     * @param series  the series index.<a name="line.468"></a>
<span class="sourceLineNo">469</span>     * @param index  the item index.<a name="line.469"></a>
<span class="sourceLineNo">470</span>     *<a name="line.470"></a>
<span class="sourceLineNo">471</span>     * @return An array containing the cumulative negative and positive values<a name="line.471"></a>
<span class="sourceLineNo">472</span>     *     for all series values up to but excluding &lt;code&gt;series&lt;/code&gt;<a name="line.472"></a>
<span class="sourceLineNo">473</span>     *     for &lt;code&gt;index&lt;/code&gt;.<a name="line.473"></a>
<span class="sourceLineNo">474</span>     */<a name="line.474"></a>
<span class="sourceLineNo">475</span>    private double[] getStackValues(TableXYDataset dataset,<a name="line.475"></a>
<span class="sourceLineNo">476</span>                                    int series, int index) {<a name="line.476"></a>
<span class="sourceLineNo">477</span>        double[] result = new double[2];<a name="line.477"></a>
<span class="sourceLineNo">478</span>        for (int i = 0; i &lt; series; i++) {<a name="line.478"></a>
<span class="sourceLineNo">479</span>            double v = dataset.getYValue(i, index);<a name="line.479"></a>
<span class="sourceLineNo">480</span>            if (!Double.isNaN(v)) {<a name="line.480"></a>
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